Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 799 · 40 questions

The method (Find the 100%): Name the topic and write its formula. For percent questions, decide which value is the 100%. Check units (₹, km/h, days) and whether the answer is sensible.

1. 1.The average weight of 9 children is 28 kg. One child, who weighs 36 kg, leaves the group. What is the new average weight (in kg)?
2. 2.A study lamp marked at ₹4160 is sold for ₹3744. What is the discount percent?
3. 3.A bus runs at 54 km/h. How far does it go in 90 minutes (in km)?
4. 4.A shop sells an average of 21 kg of sugar a day for 4 days, and then 31 kg a day for the next 4 days. What is the average sale per day for all 8 days (in kg)?
5. 5.The price of a school bag changes from ₹4320 to ₹3888. By what percent did it come down?
6. 6.Kabir cycles to his school at 20 km/h and comes back by the same road at 60 km/h. What is his average speed for the whole trip (in km/h)?
7. 7.Find the compound interest on ₹24000 at 5% per year for 3 years, added every year (in ₹).
8. 8.The price of a bicycle is ₹2640. It goes up by 50%. What is the new price (in ₹)?
9. 9.In 9 years, Kabir will be twice as old as Kabir was 6 years ago. How old is Kabir now?
10. 10.Marks of 6 friends in a quiz: 72, 63, 69, 75, 76, 47. What is their average mark?
11. 11.A water tank holds 180 litres. 5% of the water is used. How many litres are left?
12. 12.Find the amount when ₹48000 is invested at 5% per year compound interest for 3 years (in ₹).
13. 13.A shop sells 1960 cups of tea a month. Next month it sells 5% more. How many cups does it sell next month?
14. 14.A pair of shoes marked at ₹2180 is sold for ₹1090. What is the discount percent?
15. 15.A cricket bat is marked at ₹4920. The shop gives a 15% discount. How much do you pay (in ₹)?
16. 16.The price of a school bag changes from ₹2320 to ₹2900. By what percent did it go up?
17. 17.What is the difference between the compound interest and the simple interest on ₹29000 at 10% per year for 2 years (in ₹)?
18. 18.The price of a school bag changes from ₹3080 to ₹1848. By what percent did it come down?
19. 19.Find the simple interest on ₹18200 at 2% per year for 3 years (in ₹).
20. 20.A study lamp is marked at ₹4620. The shop gives a 25% discount. How much do you pay (in ₹)?
21. 21.What is the difference between the compound interest and the simple interest on ₹7500 at 8% per year for 2 years (in ₹)?
22. 22.A car runs for 1 hour at 32 km/h and then for 1 hour at 40 km/h. What is its average speed for the whole journey (in km/h)?
23. 23.A water tank holds 3480 litres. 15% of the water is used. How many litres are left?
24. 24.The price of a school bag changes from ₹140 to ₹105. By what percent did it come down?
25. 25.Dev can finish a job in 9 days and Rohan in 6 days. Dev works alone for 6 days and then stops. Rohan finishes the rest. How many days does Rohan take?
26. 26.Isha can finish a job in 10 days and Karan in 2 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
27. 27.Ishaan and Zoya together finish a job in 8 days. Ishaan alone takes 12 days. How many days would Zoya take alone?
28. 28.The simple interest on ₹16400 for 1 year is ₹492. What is the rate of interest (% per year)?
29. 29.Rahul and Isha together finish a job in 8 days. Rahul alone takes 10 days. How many days would Isha take alone?
30. 30.Marks of 4 friends in a quiz: 84, 62, 86, 52. What is their average mark?
31. 31.Kabir’s batting average after 11 innings is 29 runs. How many runs must Kabir score in the next innings to raise the average to 30?
32. 32.A shopkeeper buys a cricket bat for ₹560 and sells it for ₹728. Find the profit percent.
33. 33.By selling a pressure cooker for ₹119, a shopkeeper makes a loss of 15%. What did the pressure cooker cost the shopkeeper (in ₹)?
34. 34.By selling a watch for ₹627, a shopkeeper makes a loss of 5%. What did the watch cost the shopkeeper (in ₹)?
35. 35.The simple interest on ₹19100 for 3 years is ₹8022. What is the rate of interest (% per year)?
36. 36.The price of a school bag changes from ₹2260 to ₹2825. By what percent did it go up?
37. 37.A price goes up by 25% and then comes down by 15%. By what percent has it gone up in all? =
38. 38.The average of 6 numbers is 58. When one more number is added, the average becomes 59. What number was added?
39. 39.By selling a cricket bat for ₹57, a shopkeeper makes a loss of 5%. What did the cricket bat cost the shopkeeper (in ₹)?
40. 40.A pair of shoes is marked at ₹1140. The shop gives a 25% discount. How much do you pay (in ₹)?

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